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Lazy IITians

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Question sets

  1. 1
    5.What are the different ways data can be stored
    Times asked 1
    Official solution

    Simpledata() local diary. Store school notice board.

    Search query local. Logged-in user store. Persist: store + localStorage together.

    state vs data: similar concept, scope alag.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    // local
    data() { return { q: '' } }
    // global
    this.$store.state.user

    Project example: Login.vue local form fields. this.$store.state.user Navbar.

  2. 2
    6.Project demo (first)
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

Advice: Give a detailed explanation of the models and routes initially itself.
  1. 1
    1.He asked me to add one more input field "city" in customer register page, which I did by adding attribute city in user table and changed customer register page and login route.
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    3.He asked me to add a background image behind my admin dashboard.
    Times asked 1
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
    .btn-primary { background: red; }
    
    /* center navbar item */
    .navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

  3. 3
    6.He asked me to create a table inside a table.
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

Advice: please refer to whatever I have written in Questions asked by the Viva examiner portion.
  1. 1
    Questions I Remember From My MAD-1 Viva-2:
    Times asked 1
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  2. 2
    Run your application now.
    Times asked 1
    Official solution

    Simplevenv activate → dependencies → DB create/migrate → flask run. Browser pe localhost dikhao.

    Example

    python -m venv .venv
    source .venv/bin/activate
    pip install -r requirements.txt
    flask run
  3. 3
    In the Admin model (or table), why did you use @staticmethod? What is its purpose, and where did you call this method?
    Times asked 1
    Official solution

    Simplemodels.py = har table ki class: columns, PK/FK, relationships. Yeh Model layer hai.

    Suggested flow1) Classes list karo
    2) Har table ka kaam 1 line
    3) Relationships (1-M / M-M)
    4) Constraints (unique, nullable)

    Example

    class Lot(db.Model):
        id = db.Column(db.Integer, primary_key=True)
        name = db.Column(db.String(80), nullable=False)
        spots = db.relationship('Spot', backref='lot', lazy=True)
  4. 4
    What is the name attribute in the input tag, and what does it do?
    Times asked 1
    Official solution

    SimpleForm user input server ko bhejti hai. Table rows/columns dikhati hai.

    <form action="{{ url_for('register') }}" method='POST' enctype='multipart/form-data'>
      <input name='email' required>
      <button type='submit'>Go</button>
    </form>

    name attribute server pe key ban'ti hai: request.form['email']. id JS/CSS, value default/dikhta hua text.
    action URL. method GET/POST. enctype file upload pe multipart.
    required frontend empty submit rokta hai (backend phir bhi check).

    <table><thead><tr><th>Name</th></tr></thead><tbody><tr><td>{{ u.name }}</td></tr></tbody></table>

    th header, td data, tr row. Nested table: td ke andar table (avoid, messy).
    method hataoge to GET, password URL mein — buri baat.

  5. 5
    How are you storing sessions in the backend? (This led to an in-depth discussion as you implemented a different logic.)
    Times asked 1
    Official solution

    SimpleMAD1 mein usually session-based auth: login pe session['user_id'], har request pe verify.

    Example

    session['user_id'] = user.id
    uid = session.get('user_id')
    user = User.query.get(uid)

    Viva tipSECRET_KEY set karo warna session insecure. logout pe session.clear().

  6. 6
    Show how you implemented the logout functionality and explain the logic behind it.
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  7. 7
    In the frontend code, make a change such that the customer's address in the service request table appears in all capital letters.
    Times asked 1
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
    .btn-primary { background: red; }
    
    /* center navbar item */
    .navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

Advice: All the Best for Your Viva! Make sure to thoroughly review your entire code and understand why you wrote every single line. The proctor will likely review your code in detail and ask random questions, so be prepared to handle any modifications or changes they might request. Focus especially on your models, how you've defined them, and how you've implemented relationships. Pay extra attention to concepts like backref, lazy, and any custom logic you've used. Just be confident! If there's any question you don't know the answer to, it's better to admit it honestly rather than trying to guess or over-explain unnecessarily. And don’t worry too much—proctors usually try to wrap up the viva quickly. Best of luck, you've got this! 👍
  1. 1
    Cloud Services
    Times asked 1
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  2. 2
    What should you change in order to manage thousands of requests in a single machine
    Times asked 1
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
    .btn-primary { background: red; }
    
    /* center navbar item */
    .navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

Advice: Know your project very well, he'll tell you to change functionality, so first explain how you are going to proceed and then go ahead
  1. 1
    checksum
    Times asked 2
    Official solution

    SimpleExaminer wohi ZIP chahta hai jo tumne submit kiya, local extra magic nahi.

    Portal download → extract → redis, venv, pip, npm, flask, worker, beat.

    Checksum maange to hash. Uncommitted files mat dikhana.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Suggested flow1) ZIP
    2) Extract
    3) Redis + venv + pip
    4) npm/vite
    5) flask + celery worker + beat

    Project example: Submitted zip run. README commands copy.

    Viva tipChecksum maange to hash match karke dikhao. Extra uncommitted files mat dikhana.

  2. 2
    short intro
    Times asked 1
    Official solution

    Simple30 second: naam, degree, project kya hai, stack (Flask + Jinja + SQLAlchemy + SQLite).

    Example

    Main Priya, IITM BS. MAD1 mein parking/ticket app — Flask backend, Jinja templates, session login, SQLite.
  3. 3
    demo
    Times asked 12
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  4. 4
    Question asked: 1) restApi
    Times asked 1
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
    # formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  5. 5
    2)ER diagram
    Times asked 1
    Official solution

    Simplemodels.py har table ki class hai — columns, PK/FK, relationships. Yeh Model layer hai.

    Viva mein file khol ke bolo:
    1) Kaunsi classes/tables hain (User, Role-specific, Booking...)
    2) Har table ka kaam 1 line
    3) Relationships: 1-1 / 1-M / M-M, backref, cascade, lazy
    4) Constraints: unique email, nullable, default status

    Example skeleton

    class User(db.Model):
        id = db.Column(db.Integer, primary_key=True)
        email = db.Column(db.String(120), unique=True, nullable=False)
        role = db.Column(db.String(20), default='user')
        bookings = db.relationship('Booking', backref='user', cascade='all, delete-orphan')

    ER diagram: rectangles entities, lines relationships, PK/FK mark. Schema = yahi structure.
    Tables create: db.create_all() ya migrations. SQLite file SQL viewer se dikha sakte ho.

  6. 6
    3)Db relationship
    Times asked 1
    Official solution

    Simpledb.relationship se object graph: lot.spots, booking.user. backref reverse side auto deta hai.

    Example

    spots = db.relationship('Spot', backref='lot', cascade='all, delete-orphan')
  7. 7
    4)list and tuples
    Times asked 1
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
    # formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  8. 8
    5) few questions about code like how this is working and all
    Times asked 1
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
    # formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  9. 9
    CODE CHANGES
    Times asked 1
    Official solution

    Yeh MAD-1 viva question tumhare project ke context se linked hai. Short answer is structure se do:

    Pehle 1 line definition/purpose, phir tumhare project ka example, phir chhota code/flow.

    Typical Flask flowBrowser request → @app.route controller → SQLAlchemy model/DB → Jinja template response.

    Auth: session['user_id'] + role check. CRUD: add/commit, query.all, field update, delete.
    Live change maange to: related model → route → template, phir browser refresh karke dikhao.

    Example (generic create):
    obj = Model(name=request.form.get('name'))

    db.session.add(obj); db.session.commit()
    return redirect(url_for('list_view'))
  10. 10
    1)create an admin summary tables that provide summary of admin dashboard like total services, total costumer,unverified prof, verified pro etc.
    Times asked 1
    Official solution

    SimpleNayi booking flow: UI form/button → route POST → login_required → validate seats → insert Booking → commit → redirect/flash.

    Suggested flowBrowser → Flask route → Auth → Business rules → SQLAlchemy → SQLite → Response template/JSON

  11. 11
    2) add a background image
    Times asked 1
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
    .btn-primary { background: red; }
    
    /* center navbar item */
    .navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

  12. 12
    then asked what i've learnt from this project and how strong i'm at coding
    Times asked 1
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
    # formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

Advice: Nice proctor, chill guys, helps u if u stuck somewhere, just answer point to point , know your code, and be confident
  1. 1
    Explain folder structure and the files in it (what they are and what they do)
    Times asked 1
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  2. 2
    Open one of your routes and explain what happens in it
    Times asked 1
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  3. 3
    Open one of the html files and explain what happens in that
    Times asked 1
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  4. 4
    What does 'url_for' do?
    Times asked 1
    Official solution

    Simpleurl_for endpoint name se URL banata hai — hardcode path mat likho.

    Example

    url_for('auth.login')
    url_for('static', filename='css/style.css')
  5. 5
    CODING: Do validation to ensure that the password length has to be minimum 8 characters
    Times asked 1
    Official solution

    SimpleValidation = input rules: required, email format, length, unique. Frontend UX, backend security — dono.

    Example

    if not email or '@' not in email:
        flash('Invalid email')
        return redirect(request.url)
    if User.query.filter_by(email=email).first():
        flash('Email taken')
  6. 6
    What does query.all() do?
    Times asked 1
    Official solution

    Simplenullable=False matlab column khali nahi. default seedha value. Query objects lazy hote hain jab tak .all/.first.

    age = db.Column(db.Integer, nullable=True)  # optional
    status = db.Column(db.String(20), default='pending')

    __tablename__ = 'users' # table name override

    User.query.all() → list of User. .first() → User ya None. .get_or_404(id) → User ya 404.
    filter_by(...) Query object return karta hai, execute .all() pe. Type: BaseQuery / list after all().
    db.func.count(User.id) aggregate. Empty table render: loop 0 baar, crash nahi agar code sahi.

  7. 7
    Open your project report that you have made
    Times asked 1
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
    # formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

Advice: Very polite and nice. He'll nudge you in the right direction with hints if you're unable to recall something or are having trouble doing something. Nothing to worry about.
  1. 1
    Explain the Project file structure.
    Times asked 1
    Official solution

    SimpleProject overview: problem → roles → main entities → key flows (register, book, admin approve).

    Viva tip1 minute elevator pitch ready rakho, phir demo.

  2. 2
    Show project report and E-R diagram.
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  3. 3
    Explain how many to many relationship is represented in Data Base? (DBMS) 4)Explain @app.route().
    Times asked 1
    Official solution

    Simpledb.relationship se object graph: lot.spots, booking.user. backref reverse side auto deta hai.

    Example

    spots = db.relationship('Spot', backref='lot', cascade='all, delete-orphan')
  4. 4
    Explain how flask works internally.
    Times asked 1
    Official solution

    SimpleFlask lightweight Python web framework — routes, request/response, templates. MAD1 ka backend yahi hai.

    Example

    from flask import Flask
    app = Flask(__name__)
    
    @app.route('/')
    def home():
        return 'Hello'

    Viva tipFlask micro hai: jo chahiye (DB, login, forms) khud jodte ho.

  5. 5
    Where and how did u use boostrap and jinja, explain using some html file?
    Times asked 1
    Official solution

    SimpleJinja2 Flask ka template engine — HTML ke andar {{ }} variables, {% %} logic.

    Example

    {% for lot in lots %}
      <li>{{ lot.name }} — {{ lot.spots }}</li>
    {% else %}
      <p>No lots</p>
    {% endfor %}
  6. 6
    Explain primary key and foreign 🔑.
    Times asked 1
    Official solution

    SimplePrimary key row ka unique identity — usually id Integer autoincrement.

    Example

    id = db.Column(db.Integer, primary_key=True)
  7. 7
    Explain the sqlalchemy models.
    Times asked 1
    Official solution

    SimpleSQLAlchemy MAD1 ka common ORM. Flask-SQLAlchemy wrapper se db.Model, db.session.

    Example

    user = User(email='a@b.com')
    db.session.add(user)
    db.session.commit()
    users = User.query.filter_by(role='admin').all()
  8. 8
    Show how admin can view professional resume file.
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  9. 9
    Modifications to my code: (i) Password verification (either back end or front end modification) to restrict length, pw should contain both upper case & lower case and special characters. (ii) Arrange/sort the services which will be displayed to the Admin by alphabetical order.
    Times asked 1
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: 1) Proctor allowed me to refer to the internet (said preferably not AI like ChatGPT) to make changes to the code. 2) You should be able to explain your code (especially sqlalchemy models) and various libraries used. 3) Also understanding of data base.
  1. 1
    Code changes- changing of location of the login option to top right corner
    Times asked 1
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
    # formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  2. 2
    How did I validate users
    Times asked 1
    Official solution

    SimpleValidation = input rules: required, email format, length, unique. Frontend UX, backend security — dono.

    Example

    if not email or '@' not in email:
        flash('Invalid email')
        return redirect(request.url)
    if User.query.filter_by(email=email).first():
        flash('Email taken')
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